Use the
straight right after you have set up an opening with your jab.

Step 1:After establishing your stance, shift your
weight to your left leg. Pivot your right (rear) foot so that
your toes are pointing forward, while simultaneously
delivering a right punch. Remember to push against the floor
with your rear foot. (At the very last moment, rotate your
fist so that your thumb is facing the floor.)

Step 2:Pull your hand back on the same plane the punch
was thrown. Return your rear foot to its original
position-toes pointing between 12 and 2 o'clock.